Devin Hunt, 23, was charged with killing Presley Faith Hunt.
It was a short deliberation, with the jury reaching a verdict in just 50 minutes.
Following a three-month investigation and a medical examiner's report stating Presley had died from "abusive head trauma," Hunt was arrested in September 2012.
Presley was with Hunt when she suffered the injuries.
Defense attorneys Bill James and Lee Short represented Hunt, and they say he was immediately released from custody following the verdict.
Rebecca Bush, Chief Deputy Prosecutor, represented the state, and Judge Grisham Phillips presided over the case.
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